43738842840 has 1024 divisors, whose sum is σ = 182145024000. Its totient is φ = 8196249600.

The previous prime is 43738842827. The next prime is 43738842841. The reversal of 43738842840 is 4824883734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43738842841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 616040005 + ... + 616040075.

It is an arithmetic number, because the mean of its divisors is an integer number (177876000).

Almost surely, 2^43738842840 is an apocalyptic number.

43738842840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43738842840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91072512000).

43738842840 is an abundant number, since it is smaller than the sum of its proper divisors (138406181160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43738842840 is a wasteful number, since it uses less digits than its factorization.

43738842840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 51.

The spelling of 43738842840 in words is "forty-three billion, seven hundred thirty-eight million, eight hundred forty-two thousand, eight hundred forty".